Computerized adaptive testing (CAT) has been implemented in high-stakes examinations such as the National Council Licensure Examination-Registered Nurses in the United States since 1994. Subsequently, the National Registry of Emergency Medical Technicians in the United States adopted CAT for certifying emergency medical technicians in 2007. This was done with the goal of introducing the impleme...

In this paper, we demonstrated the equivalencies of internal categories
 cat-1 groups and cat-2 structures using some related equivalent
 categories.

Volume 23 (3), 2003 ABSTRACT: Domestic cat (Felis catus L.) advocates have formed coalitions whose goals are to promote the welfare of cats through the use of a specific nonlethal population control method. This method consists of trapping, neutering. and releasing cats into supervised cat colonies located on private and public lands, including state and county parks and natuntl areas. Advocate...

this study was conducted on two canola (brassica napus) cultivars, okapi a winter type and cold tolerant and rgs003 a spring type and cold sensitive. seedlings were grown in an environmentally controlled growth room with 16 h d-1 photoperiod at 22/16 °c (day/night, control). at the 4-leaf stage, half of pots were transferred to a cold growth room for 7 d at 10/3°c (day/night, cold treatment) an...

one of the major classes of ionotropic glutamate receptors is the class of n-methyl-d-aspartate receptors (nmdars). receptor activation recruits, via calcium signal transduction mechanisms which play important roles in oxidative metabolism, mitochondrial free radical production and occurrence of other mitochondrial factors which potentially contribute to excitotoxicity and neuronal death. in...

background: diazinon (dzn) is one of the most organophosphates (ops) insecticides that widely used in agriculture and industry. some ops are capable to produce free radicals and induce malfunction in body antioxidant systems. enzymatic and nonenzymatic antioxidants such as superoxide dismutase (sod), catalase (cat) and glutathione s-transferase (gst) and glutathione (gsh) normally counteract da...

Novel antibiotics are needed to overcome the challenge of continually evolving bacterial resistance. This has led to a renewed interest in mechanistic studies of once popular antibiotics like chloramphenicol (CAM). Chloramphenicol acetyltransferases (CATs) are enzymes that covalently modify CAM, rendering it inactive against its target, the ribosome, and thereby causing resistance to CAM. Of th...